Table 1.
Orchid dynamics (disappearance/appearance) in relation to recent land covers. Generalized least squares (gls) models were performed on the SES values of administrative units based on null model 1. This model incorporates spatial structure in the error term of the regression model. The predictors included the proportion in urban area, in agricultural area and in natural area including closed natural area (forest) and open natural area (grassland) in 2006, for each administrative unit. Significance codes for the linear model are ∗ = P < 0.05, ∗∗∗ = P < 0.001. Here, the exponential correlation structure was considered owing to AIC selection.